Automatic control valve



p 9 o. EBERSPACHER 1,878,270

AUTOMATIC CONTROL VALVE Filed July 22. 1930 v II glwmmto'o a i and to the service faucet.

, Patented Sept 20 p mpin edsunrises; 155a."garageliagm f i 51;

This iiiven tio lrelats"tdfiiewfaiid useful 1atis.iainghifimaishankiawii'ilimprovements in an,automatic control valver 7 'One object of'the invention is to; provide a;

a mechanismiof the charact'e'i -described'speoiaL the fuel will be automatically opened to permit gas to flowto-the burnerwhenjthecorre- I0 sponcling water faujcetis openedand {whereby the supply of gas to thebu'rnerwill be auto- V maticallyfcut ofi' vvhen said servicefaucet 'iscloseds V V m Another object of the invention is topro- Y5 'vide means for automatically controlling the gas line valve in accordance with varying pressures in the Water supply line through which water is supplied .to-the burner; coil m With the above and other objectsin view the invention has particular relation'to a novel construction,' operation and arrangement of parts, an example of which is given companying drawing, wherein L The figure shows a'vertica'l sectional view of the valve and the controlling mechanism therefor, and theassociated heater coil and burner. Y

so "I the qmwi ig, e nulnjerall designates, the heater coil, underneathwhich there "is: locatedany conventional-type of gas burner. v.

2; which is suppliedjwithiuel through the .4 gas line Incorporated into this line there 3 is a valve casing 4havinga seat 5"therein which is controlled by the valve 6. This valve is attached to the loWerend of 'thei' st'e'm which works throughthe stuffing box 8 in the- I casing 4t and whoseupper end is attached to} j a plunger 9 which Works'throughthe stufling Y box 10 of the cylinderll; This cylinderis.

anchored in relation to'the casing 4 by a suitableyoke 12 andthe cylinder' 11 is incor-j 7 i porated into the water supply line 13 which p terminatesin the coil 1'. Leading, from thiscoil there is a service line 14: whichxis con-1 trolled byta suitablecvalve or faucet- 1 5; 1

'r ijng inplace. i The cylifider' has s 1 1 0 is Y nd rle tle ly designe d-.foruse, eonmcumfia water.

V heaters "wherein gas is used as a fuel, and.

t adapted; to- 'abut the :end plate 20.:II; whereby the valve controllingfthe sup ply of ries'the stationary valve 2 L water q Wlint'h service "faucet v1 5 valve, and-"the gas valvedwillib seated in this specification and illustrated in-the acp ,7 I I p 7 p theseatfianditlie supply gasl'toft h will jibe? cut 611f; JQ Whenthfe s,

pressure above 1mm i's threaded iiito thefplunger tdph p 0and: heie e e i ienr aconical 'shajped'headi2l xwvhoseouter endis one end' to the end plate "so e extends through said .;openi'r lg3. 1 itS QtheriendI ca ply, iline enters] the": cylinder 1.111 on] one side? of the piston l6land leads out'ojfsaid cylinderi V on the other side of said piston;

sure I of the water will; up n the cyline.

der l'l jonjbothSidesofthepiston f V 7 area ofsaid piston, xposed to such pr ssure,

is, greateron'the sijde' aer'e i Qppw itejtlirei valvef24 thantliat on thefside' adj a oelnt Said Valve, ThiSV unequal I ressurewilltper: ate to. force the "piston 16 toward: the valye 24 iandi the op'eiiingl22 will zbef'c Is'ed by V Qb l l: V faii tis' open, ith p'ressure against, th outerljls'ide f the ipisto 16} will 'fbe're'lieved. fd 'the waiter di jt'he other' 'id eb marquesid ting wjaterithrqugh' th op netb llamene e same tinij lifting eat '5'landf admitt l e said valVe a valve in thecylinde'r is now Considered to be a preferred form of the invention by way of illustration only, while the broad principle of the invention will be defined by the appended claims.

What I claim is:

- 1. In combination, a gas valve for controlling the flow of gas to a burner, a cylinder having'a water inlet port and a water outlet port, a movable plunger whose inner end is formed into a piston in the cylinder between said ports and having an opening for the passage of water from the inlet tothe outlet port, a stationary valve arranged topartiallyi close said opening when the piston is moved to one position and to fullyopen said open ing when the piston moves to another position, and a stem connecting the gas valve directly to the plunger.

2: In combination, a valve for controlling the How of gas through a line, a cylinder having an inlet port from a water'sup'ply line and an outlet port to a water service line, means for closing said service line, a movable partition inthe cylinderbetween said ports, said partition having a smaller area exposed to water pressure on the inlet port side than on the outlet port side, a connection between the partition and gas control valve elfective'to close said gas control valve when said service line is closed, said partition having an opening to'ipermit the flow of water from the inlet port toithe outlet port, and a fixed valve arranged to only partially close said opening when the gas control valve is closed and to maintain said opening so partly closed until the valve is fully opened.

3. In combination, a valve for controlling the'flow of gas through a line, a cylinder having aninlet port from a pressure fluid supp'lygli'ne and an outlet port to a service line, means'forco'ntrolling said service line, a movablepartition in the cylinder between s'aidportsland havingfan' opening there through and having a greater area, exposed tofiuid pressure, on one side than on the partition having the greater area arranged to abut the opposing end of the cylinder, said partition being operable solely by the'pres sure of the fluid in said cylinder, a valve fixed in the cylinder and shapedto only partly close said opening when the partition is in arranged to partially close said opening in advance of the closing of the gas controlling valve and to maintain said opening so partially closed until the gas controlling valve is fully opened and to fully open said opening.

5. In combination a gas valve for controlling the flow of gas to 'a burner, a cylinder having a water inlet and outlet and having a stufling box on one end and a head at the ,other-end, a plunger working through said the piston is'in one position and arranged to clear sa1d opening only when said piston has moved to another position.

In testimony whereof I have signed my name to this specification.

* OTTO EBERS'PACHER.

" otherjside, a conicalhead on the side of said oneposition and to fully open said opening when said partition is inanother'position and 4 v a connection between said partition gas controlling valve.

and said 4:.111' combination, a gas valve for controlling the flow of gas to a burner, c'yl ind'er'having a water'in'let; and outlet, a movable piston in the cylinder between said inlet andoutlet said piston having an opening for the passage of water from said inlet to said outlet a stem connecting the piston to said gas controlling valve and efliective to open 

